code: def _get_file_id(file_path: str, _ext_audio: str):
      speaker_id, youtube_id, utterance_id = file_path.split("/")[-3:]
      utterance_id = utterance_id.replace(_ext_audio, "")
      file_id = "-".join([speaker_id, youtube_id, utterance_id])
      return file_id
  
imports: import os
  from pathlib import Path
  from typing import List, Tuple, Union
  from torch import Tensor
  from torch.utils.data import Dataset
  from torchaudio._internal import download_url_to_file
  from torchaudio.datasets.utils import _extract_zip, _load_waveform
label_desc: Use image node_id 4 for calling a global function with example usage: _get_file_id(file_path, _ext_audio) and returns: file_id